40 HELIX §. 8. 9. 



obscurioribus nubeculati; cariiia albida; labrum simplex, rectum; 

 apertura subtetragona. — Diam. 3 — 5, alt. 2 mill. (Porro ) 

 Helix sardiniensis Porro in Revue zool. 1838. p. 225. 



— — Villa disp. syst. p. 54. 



Habitat iii Sardinia. 



Obs. Descriplio incompleta An huc referenda? An forma aduita ? 



§. 9. 



64. H. caffra Ferussac. 



T. perforata, inflata, subdepresso-globosa, tenuis, fragilis, 

 costulato-striata , viridula, fusco-viridi irregulariter strigata; spira 

 brevis, obtusa; anfr. 4 convexiusculi, ultimus subdepressus; aper- 

 tura magna , lunato-ovalis , intus margaritacea ; perist. tenue, 

 acutum , simplex , marginibus callo tenui junctis , columeliari 

 reflexo, perforationem semioccultante. — Diam. maj. 51, min. 40, 

 alt. 30 mill. (Mus. Cuming.) 



Helix caffra ( Helicophanta ) Fir. pr. 3. Hist. t. 9 A. f. 8. 



— — Wood suppl. t. 7. f. 36. 



— — Lam. ed. Dh. 168. p. 107. 



— — Chemn. ed. II. Helix N. 444. t. 74. f. 1 ~3. 

 Helicophanta cafra Beck ind. p. 46. 



Habitat in Promontorio bonae spei. 



65. H. nicobarica Chemnitz. 



T. perforata, sinistrorsa, solida, globulosa, obiique striata, 

 castaneo - rufa , ad peripheriam, suturam et basin albo - zonata ; 

 spira brevis , obtusa; anfr. b/7. convexiusculi , ultimus antice 

 descendens, basi inflatus; apertura rotundato-Iunaris, intus con- 

 color ; perist. simplex , obtusum , album , margine columellari 

 reflexiusculo, perforationem fere tegente. — Diam. maj. 37, min. 

 30, alt. 27mill. (Mus. Gray.) 



Helix (pomatia contraria) nicobarica Chemn. IX. P. 1. p. 79. t. 108. 

 f. 911. 12. 



— nicoharica Desh. in Guer. mag. 1839. t. 3. 



— — Chemn. ed. II. Helix N. 22. p. 49. t. 6. f. 6. 7. 



Habitat in insulis Nicobaricis. 



66. H. semirugata Beck. . ., ./;, Ji. >'.<$. ^ \ . ./ '.., 



T. perforata, globosa, tenuiuscula, pallide fulvescens, strus 

 incremcnli lineisquc impressis conccntricis supernc usquc ad 

 jieripheriam anfraclus ultimi subdecussata; anfr. 5 convexiusculi, 

 ultiraus magnus, inflatus; apertura lunato-subovahs; perist. sim- 



